66943921 is an odd 8-digits composite number following 66943920
and preceding 66943922 . In scientific notation, it is written as 6.6943921 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 59949120 positive integers (up to 66943921) that are relatively prime to 66943921.
66943921 has 8 divisors, whose sum is 74120544
The reverse of 66943921 is 12934966
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
sixty-six million nine hundred forty-three thousand nine hundred twenty-one
Scientific notation
6.6943921 × 10^7
Engineering notation
6.6943921 × 10^6
Prime Factorization
11 × 67 × 90833
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66943921
Product of the distinct prime numbers
The prime factorization of 66943921 is 11 × 67 × 90833.
Since it has a total of 3 prime factors.
1 , 7 , 20 , 94 , 750 , 970 , 4285 , 701 , 86389 , 1875 , 797515 , 677621 , 8913863 , 8049784 , 20177417 , 57561793 , 486967748 , 567926389 , 5140134414 , 3040993510
n×2
133887842
n×3
200831763
n×4
267775684
n×5
334719605
n÷2
33471960.5
n÷3
22314640.333333
n÷3
16735980.25
n÷5
13388784.2
n2
4481488558854241
n3
3.0000841604634E+23
n4
2.0083739703141E+31
n5
1.3444842840717E+39
2 √n
8181.9264846367
3 √n
406.04146122236
4 √n
90.454002037703
5 √n
36.740260325427
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66943920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66943921 can be divided by 8 positive divisors.
The sum of these divisors (counting 66943921) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111111010111101110110001
3
Ternary
11122222002210111
4
Quaternary
3333113232301
5
Quinary
114114201141
6
Senary
10350501321
8
Octal
377275661
10
Decimal
66943921
12
Duodecimal
1a504841
16
Hexadecimal
3fd7bb1
20
Vigesimal
10i7jg1
36
Base36
13uu9d
md5
c2645c96b309629a342f5b8a23d57061
sha1
ab5bc463a25c5096dfbaaa45428dcfe4888d938e
sha256
92179623d6ee38c0dfb8d5f3d8cef3afd79eafbaee42dc9d9f0ed0cb6012a367
sha512
84fb56625d52d7a3ca238bc2c3f10d991aab0dd0838edce0af17a53a4f3a4ba95ed33ef96b66a4760dac888c15b5ce0d811d1e4bae4c79f0ebce03338a887d1b
ripemd-160
9edf09dad9945d6ece3753d8d6f059342945c3ea
Diameter
133887842
Circumference
420621060.83219
Area
1.4079011533643E+16
Volume
1.2566723144884E+24
Surface area
5.6316046134573E+16
Circumference
420621060.83219
Perimeter
267775684
Area
4481488558854241
Diagonal
94673000.996633
Surface area
26888931353125446
Volume
3.0000841604634E+23
Space diagonal
115950272.42988
Perimeter
200831763
Area
1.9405414693685E+15
Altitude
57975136.214939
Surface area
1.9405414693685E+15
Volume
3.5356330899901E+22
Height
31557666.998878